The Biogeochemical Cycles By: zayne Reeves

Water Cycle

Water Cycle: The water cycle is the process that water goes through throughout the world and the different processes that transpire throughout the day. The water cycle has many different forms that it goes through. The list seems almost endless but it isn't some of the forms and processes that it goes through are Condensation, Precipitation, Collection, and Evaporation. These are the main processes that water goes through but there are small side processes that water also goes through which could include Sublimation, Surface Runoff, Groundwater Discharge, Ice and Snow, and Evapotranspiration.

In the water cycle there is no chemical reaction that occurs during the water cycle there is only a physical change.

The water cycle is one of the four cycles and this one does not have any organic components in the cycle.

Carbon Cycle

Carbon Cycle: The carbon cycle is the using and reusing of carbon in the world. The carbon cycle is the process in which carbon travels from the atmosphere into organisms and the Earth and then back into the atmosphere. Plants take carbon dioxide from the air and use it to make food. Animals then eat the food and carbon is stored in their bodies or released as CO2 through respiration.

O2 -> CO2 oxygen to carbon dioxide from respiration. CO2 -> 02 Carbon Dioxide to Oxygen through plants respiration.

Organic: The different types of organic components in the carbon cycle involve the dead bodies of animals and the plants that are around them. When animals breath they release carbon dioxide and when they breath in the oxygen that is in the air, and the cycle continues.

Inorganic: The inorganic components of the carbon cycle involve the things like air and the water, as well as the soil and the excess molecules that are in the air.

Human intervention on the carbon cycle involve vehicles that give off large amounts of carbon dioxide and factories that release the same type of compound. Humans affect the carbon cycle on their own just by breathing but mainly its the man made creations that affect the carbon cycle.

Nitrogen Cycle

Nitrogen Cycle: The nitrogen cycle is the process which nitrogen is converted into various chemical forms as it circulates among the atmosphere and terrestrial and marine ecosystems.

Chemical Reactions: Nitrogen fixation n2 -> ammonium. Denitrification Nitrate -> Dinitrogen. Nitrification: Ammonium -> Nitrate. Nitrogen Mineralization: Organic N -> Ammonium. Nitrogen Uptake: NH4 -> Organic N

Organic: The organic components of the nitrogen cycle include dead plants and animals that are broken down and used in the soil by plants that break down the type of compound that the nitrogen is currently in to one that they can use.

Inorganic: The inorganic components of the nitrogen cycle is the water soil and atmosphere that affects the nitrogen in the cycle and how much is still spread around.

Human intervention has its toll on the nitrogen cycle because humans affect how much nitrogen is in the soil due to pesticides and weed killers as well as other types of fertilizer and any other chemicals on houses or on roads that may be taken away with rainwater and be pushed underground for plants to try to use but it could be too much.

Phosphorous Cycle

Phosphorous cycle: The phosphorous cycle moves in a cycle through rocks, water, soil, sediments and organisms.

Chemical Reactions: Phosphorous (P) Phosphate (PO43)

Organic: The organic components of the phosphorous cycle are the plants that absorb the phosphates from the ground and the animals that eat those plants.

Inorganic: The inorganic components of the phosphorous cycle are the weathering of the rocks away and the depositing of phosphates in the water and soil.

Human Intervention in the phosphorous cycle is mainly due to fertilizers and raising livestock mainly hogs which affect how much phosphate is in the soil at one time as well as how much is left over afterwords.

Credits:

Created with images by Jan-Helge69 - "Red clouds" • ataribravo99 - "water wave macro" • James St. John - "Calcrete paleosol (Green Cay, offshore San Salvador Island, Bahamas) 7" • NASA Goddard Photo and Video - "How the Sun Caused an Aurora This Week" • josemdelaa - "matches phosphors fire"

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